BUF - ONT

C$ 204 Find Cheap Flights from Buffalo to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Buffalo to Ontario departing on 28/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Buffalo to Ontario, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
C$ 414
Delta
Tue 5/5Tue 12/5
BUF - ONT • 2 stops
Cheapest one-way flights
C$ 204
Typical prices: C$ 261-C$ 290
Delta
Tue 28/4
BUF - ONT • 1 stop
Top airlines
Delta
Cheapest • from C$ 414 (round-trip)
Southwest
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Buffalo and Ontario. You’ll need at least 1 connection.
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Buffalo to Ontario (BUF-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Buffalo to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Buffalo to Ontario

Tue, 5 May - Tue, 12 May
Delta Logo
6:05 a.m. - 12:14 p.m.
BUF
-
ONT
9h 09m
2 stops
Delta Logo
10:00 p.m. - 11:13 a.m.
ONT
-
BUF
10h 13m
1 stop
C$ 414Delta
Tue, 5 May - Tue, 12 May
Delta Logo
6:05 a.m. - 12:14 p.m.
BUF
-
ONT
9h 09m
2 stops
Delta Logo
6:00 a.m. - 6:51 p.m.
ONT
-
BUF
9h 51m
2 stops
C$ 421Delta
Tue, 5 May - Tue, 12 May
Delta Logo
6:00 a.m. - 11:36 a.m.
BUF
-
ONT
8h 36m
1 stop
Delta Logo
10:00 p.m. - 11:13 a.m.
ONT
-
BUF
10h 13m
1 stop
C$ 438Delta
Sat, 2 May - Tue, 5 May
Delta Logo
12:09 p.m. - 6:33 p.m.
BUF
-
ONT
9h 24m
1 stop
Delta Logo
10:15 p.m. - 11:01 a.m.
ONT
-
BUF
9h 46m
1 stop
C$ 504Delta
Mon, 27 Apr - Sat, 2 May
Delta Logo
12:09 p.m. - 6:33 p.m.
BUF
-
ONT
9h 24m
1 stop
Delta Logo
10:15 p.m. - 11:01 a.m.
ONT
-
BUF
9h 46m
1 stop
C$ 505Delta
Sat, 18 Apr - Sat, 25 Apr
Delta Logo
6:00 a.m. - 11:36 a.m.
BUF
-
ONT
8h 36m
1 stop
Delta Logo
10:15 p.m. - 11:01 a.m.
ONT
-
BUF
9h 46m
1 stop
C$ 506Delta
Sat, 18 Apr - Sat, 25 Apr
Delta Logo
6:00 a.m. - 11:36 a.m.
BUF
-
ONT
8h 36m
1 stop
Delta Logo
10:15 p.m. - 11:01 a.m.
ONT
-
BUF
9h 46m
1 stop
C$ 508Delta
Sat, 2 May - Tue, 5 May
Delta Logo
6:05 a.m. - 12:14 p.m.
BUF
-
ONT
9h 09m
2 stops
Delta Logo
10:15 p.m. - 11:01 a.m.
ONT
-
BUF
9h 46m
1 stop
C$ 510Delta
Sat, 2 May - Tue, 5 May
Delta Logo
4:03 p.m. - 10:43 p.m.
BUF
-
ONT
9h 40m
2 stops
Delta Logo
10:15 p.m. - 11:39 a.m.
ONT
-
BUF
10h 24m
2 stops
C$ 519Delta
Tue, 26 May - Fri, 29 May
JetBlue Logo
8:00 p.m. - 8:45 p.m.
BUF
-
ONT
27h 45m
1 stop
JetBlue Logo
10:00 p.m. - 8:58 a.m.
ONT
-
BUF
7h 58m
1 stop
C$ 568JetBlue
Booking Insights

KAYAK's insights & trends for Buffalo to Ontario flights

Get data-powered insights and trends into flights from Buffalo to Ontario to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Buffalo to Ontario?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Buffalo to Ontario were found on Delta (C$ 414) and American Airlines (C$ 580).

Find deals

Good to know

Low seasonOctober
Cheapest flightC$ 204
Best time to beat the crowds (34% less expensive on average)
Flight from Buffalo to Ontario

When to book flights from Buffalo to Ontario

Are your dates flexible? Find out the best times to travel from Buffalo to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Buffalo to Ontario

  • What is the cheapest flight from Buffalo to Ontario?

    In the last 3 days, the lowest price for a flight from Buffalo to Ontario was C$ 204 for a one-way ticket and C$ 414 for a round-trip.

  • Which aircraft models fly most regularly from Buffalo to Ontario?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Buffalo to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Buffalo to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Buffalo to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Buffalo is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Buffalo to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Buffalo with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Buffalo to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Buffalo up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Buffalo to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Buffalo to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Buffalo to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4331 reviews
8.1Boarding
8.6Crew
7.0Food
8.0Comfort
7.5Entertainment
Airline reviews

Boarding was easy. The seats are small and fairly uncomfortable

8.0 ExcellentNicole, Mar 2026
LGB - OAK
Read more Southwest reviews

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

No food or entertainment, just a quick 40 minute flight. A little bumpy due to Santa Ana winds but pilot has no control over that. Good flight and landing!

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Mediocre. Boarding is now unpleasant. The employees, once friendly and nice, are now regularly speaking sternly to passengers, badgering them to do things right so they can take off on time and gate check bags because they don't have enough overhead bin space. The pretzel snack was crushed flat and broken into even smaller pieces, which happens frequently lately. Drink service was suspended before they reached my row.

The charges were ridiculous for an hour flight and the turbulence was very scary.

3 hour delay. Had to change plans and was still delayed.

The flight crew was extremely rude and especially not helpful when our flight was delayed.

The boarding and seat assignment system no longer works for me, but I know it is being replaced. Otherwise, I am good with the overall experience.

The lead steward kept singing about "San Francisco" and hotel California---more annoying than humorous....needs work. Flight was smooth and on time.

Everything you need to know for your flight from Buffalo to Ontario

Information on your arrival and departure airports

Buffalo (BUF)
Ontario (ONT)